#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<assert.h>
int main()
{
	char arr1[] = "abcdef";
	char arr2[] = "bcdef";
	/*printf("%d\n", my_strlen(arr1));
	printf("%s\n", my_strcpy(arr1, arr2));
	int ret = my_strcmp(arr1, arr2);
	if (ret == 0)
		printf("==\n");
	else if (ret < 0)
		printf("<\n");
	else
		printf(">\n");*/
	/*char* str = my_strcat(arr1, arr2);
	printf("%s\n", str);*/
	printf("%s\n", my_strstr(arr1, arr2));
	return 0;
}